#!/usr/bin/python
#
# Copyright 2018-2020 Polyaxon, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


class CachedMixin:
    """
    A mixin to help clear cached properties.
    """

    CACHED_PROPERTIES = ()

    def clear_cached_properties(self, properties=None):
        properties = properties or self.CACHED_PROPERTIES
        for key in properties:
            if key in self.__dict__:
                del self.__dict__[key]
